US Bed Sizes, Standard to Oversized (Twin to Family Bed XL), and King Headboard Widths

<p>Two small, verified tables with the real, published dimensions of US beds, compiled by <a href="alaskan-king-bed.com/">Alaskan King Bed</a>.</p><p><b>us-bed-sizes.csv</b>: 13 US bed sizes from Twin to Family Bed XL: width and length in inches and cm, sleeping area in sq ft and m², oversized flag, and the number of independent US maker or retailer pages that list exactly this size (checked 2026-09-22). <b>us-bed-sizes-sources.csv</b>: one source URL per row. <b>king-headboard-widths.csv</b>: 24 King headboards, width and height as listed, and the overhang on each side of a 76 in King mattress (our calculation).</p><p>Related pages: <a href="alaskan-king-bed.com/pages/bed-size-chart">bed size chart, every size bigger than a King, drawn to scale</a>; <a href="alaskan-king-bed.com/pages/king-size-bed-dimensions">King size bed dimensions</a>; <a href="alaskan-king-bed.com/pages/twin-bed-dimensions">Twin bed dimensions</a>; <a href="alaskan-king-bed.com/collections/king-headboards">King headboards with their widths drawn to scale</a>.</p>